🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.33 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.66 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.77

Radius: 1.26

Gravity: 1.11 G

Time & Orbit

Eccentricity (e): 0.128

Orbit Range: 0.58 AU - 0.74 AU

Year: 352 Days

Day: 26.3 Hours

Environment

Temp: -127 °C

Axial Tilt: 37.7 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 0.69 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 259.8

Radius: 13.2

Gravity: 1.49 G

Time & Orbit

Eccentricity (e): 0.163

Orbit Range: 0.58 AU - 0.8 AU

Year: 376 Days

Day: 11.1 Hours

Environment

Temp: -129 °C

Axial Tilt: 12.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 39,905,669 km

• M1: 164,109 km (0.093 R)
• M2: 633,248 km (0.117 R)
• M3: 1,101,190 km (0.077 R)
• M4: 2,073,875 km (0.109 R)
• M5: 2,723,429 km (0.099 R)
• M6: 3,154,720 km (0.067 R)
• M7: 3,761,339 km (0.105 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.81 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 351.5

Radius: 11.2

Gravity: 2.8 G

Time & Orbit

Eccentricity (e): 0.042

Orbit Range: 0.78 AU - 0.84 AU

Year: 478 Days

Day: 6.4 Hours

Environment

Temp: -146 °C

Axial Tilt: 33.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 39,905,669 km

• M1: 139,425 km (0.06 R)
• M2: 493,224 km (0.088 R)
• M3: 926,460 km (0.06 R)
• M4: 1,483,263 km (0.098 R)
• M5: 1,840,203 km (0.106 R)
• M6: 2,628,435 km (0.083 R)
• M7: 3,105,801 km (0.034 R)
• M8: 3,547,265 km (0.05 R)
• M9: 4,018,049 km (0.082 R)
• M10: 4,408,200 km (0.119 R)
• M11: 4,795,210 km (0.111 R)

Planet 4 - Gas Giant

Semi-Major Axis: 0.93 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 468.8

Radius: 9

Gravity: 5.79 G

Time & Orbit

Eccentricity (e): 0.13

Orbit Range: 0.81 AU - 1.05 AU

Year: 588 Days

Day: 14.7 Hours

Environment

Temp: -146 °C

Axial Tilt: 25 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 39,905,669 km

• M1: 112,049 km (0.071 R)
• M2: 435,031 km (0.102 R)
• M3: 1,035,965 km (0.078 R)
• M4: 1,317,957 km (0.099 R)
• M5: 2,406,731 km (0.063 R)
• M6: 2,686,927 km (0.1 R)
• M7: 3,011,555 km (0.119 R)
• M8: 3,362,511 km (0.101 R)
• M9: 3,832,847 km (0.067 R)
• M10: 4,642,920 km (0.11 R)
• M11: 4,937,029 km (0.088 R)
• M12: 5,243,405 km (0.108 R)
• M13: 6,221,775 km (0.1 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.9 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 889.8

Radius: 11.9

Gravity: 6.28 G

Time & Orbit

Eccentricity (e): 0.074

Orbit Range: 1.76 AU - 2.04 AU

Year: 1718 Days

Day: 8.6 Hours

Environment

Temp: -186 °C

Axial Tilt: 25.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 39,905,669 km

• M1: 147,952 km (0.056 R)
• M2: 567,574 km (0.079 R)
• M3: 972,386 km (0.098 R)
• M4: 1,696,739 km (0.075 R)
• M5: 2,348,238 km (0.109 R)
• M6: 2,915,513 km (0.108 R)
• M7: 4,689,744 km (0.065 R)
• M8: 5,228,296 km (0.103 R)
• M9: 5,783,603 km (0.08 R)
• M10: 6,507,059 km (0.116 R)
• M11: 8,533,661 km (0.067 R)
• M12: 9,371,708 km (0.098 R)
• M13: 9,845,185 km (0.071 R)
• M14: 10,950,714 km (0.093 R)
• M15: 11,324,409 km (0.118 R)
• M16: 12,216,611 km (0.077 R)
• M17: 12,988,386 km (0.075 R)
• M18: 13,492,531 km (0.113 R)
• M19: 14,674,354 km (0.12 R)
• M20: 15,221,434 km (0.09 R)
• M21: 15,734,704 km (0.089 R)

Planet 6 - Gas Giant

Semi-Major Axis: 5.37 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 854

Radius: 14.9

Gravity: 3.85 G

Time & Orbit

Eccentricity (e): 0.124

Orbit Range: 4.7 AU - 6.04 AU

Year: 8163 Days

Day: 9.5 Hours

Environment

Temp: -219 °C

Axial Tilt: 16 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 39,905,669 km

• M1: 185,352 km (0.115 R)
• M2: 1,118,543 km (0.056 R)
• M3: 2,806,606 km (0.115 R)
• M4: 3,981,996 km (0.065 R)
• M5: 4,697,373 km (0.062 R)
• M6: 5,761,164 km (0.112 R)
• M7: 6,568,244 km (0.082 R)
• M8: 7,692,323 km (0.113 R)
• M9: 8,365,513 km (0.072 R)
• M10: 10,984,373 km (0.12 R)
• M11: 12,283,182 km (0.046 R)
• M12: 13,682,371 km (0.118 R)
• M13: 14,546,149 km (0.07 R)
• M14: 15,250,306 km (0.075 R)
• M15: 15,776,442 km (0.109 R)
• M16: 18,296,418 km (0.116 R)
• M17: 20,672,631 km (0.053 R)
• M18: 21,563,336 km (0.106 R)
• M19: 22,394,951 km (0.084 R)
• M20: 32,682,198 km (0.086 R)
• M21: 36,984,782 km (0.106 R)
• M22: 42,551,618 km (0.047 R)
• M23: 44,926,784 km (0.078 R)

Planet 7 - Gas Giant

Semi-Major Axis: 5.51 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 647.3

Radius: 10.1

Gravity: 6.35 G

Time & Orbit

Eccentricity (e): 0.192

Orbit Range: 4.45 AU - 6.57 AU

Year: 8485 Days

Day: 10.4 Hours

Environment

Temp: -223 °C

Axial Tilt: 32.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (31)

Outer Limit: 39,905,669 km

• M1: 125,662 km (0.055 R)
• M2: 520,451 km (0.104 R)
• M3: 1,140,085 km (0.028 R)
• M4: 1,748,650 km (0.116 R)
• M5: 2,103,047 km (0.083 R)
• M6: 2,980,289 km (0.109 R)
• M7: 3,352,189 km (0.054 R)
• M8: 4,110,949 km (0.085 R)
• M9: 4,433,931 km (0.106 R)
• M10: 4,950,343 km (0.077 R)
• M11: 6,035,526 km (0.059 R)
• M12: 6,634,217 km (0.077 R)
• M13: 7,156,613 km (0.087 R)
• M14: 9,295,264 km (0.037 R)
• M15: 9,665,818 km (0.069 R)
• M16: 11,040,772 km (0.068 R)
• M17: 12,099,775 km (0.079 R)
• M18: 12,994,669 km (0.051 R)
• M19: 14,174,548 km (0.067 R)
• M20: 15,424,588 km (0.071 R)
• M21: 16,208,929 km (0.05 R)
• M22: 18,358,501 km (0.099 R)
• M23: 18,795,476 km (0.11 R)
• M24: 20,691,480 km (0.096 R)
• M25: 22,215,134 km (0.083 R)
• M26: 23,469,961 km (0.119 R)
• M27: 24,245,177 km (0.106 R)
• M28: 29,855,995 km (0.073 R)
• M29: 30,765,999 km (0.03 R)
• M30: 34,151,847 km (0.091 R)
• M31: 35,483,269 km (0.118 R)

Planet 8 - Ice Giant

Semi-Major Axis: 6.16 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 631.4

Radius: 5.2

Gravity: 23.35 G

Time & Orbit

Eccentricity (e): 0.191

Orbit Range: 4.98 AU - 7.34 AU

Year: 10030 Days

Day: 18.5 Hours

Environment

Temp: -230 °C

Axial Tilt: 42.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 39,905,669 km

• M1: 64,626 km (0.079 R)
• M2: 228,586 km (0.066 R)
• M3: 432,487 km (0.053 R)
• M4: 847,771 km (0.047 R)
• M5: 1,203,066 km (0.119 R)
• M6: 1,402,031 km (0.102 R)
• M7: 2,428,871 km (0.102 R)
• M8: 2,686,927 km (0.116 R)
• M9: 3,352,787 km (0.039 R)
• M10: 7,332,988 km (0.06 R)
• M11: 12,706,245 km (0.092 R)
• M12: 13,181,068 km (0.106 R)
• M13: 13,977,677 km (0.109 R)
• M14: 16,629,599 km (0.06 R)
• M15: 17,851,813 km (0.036 R)
• M16: 20,072,743 km (0.039 R)
• M17: 21,373,646 km (0.094 R)
• M18: 24,322,819 km (0.098 R)
• M19: 24,778,344 km (0.112 R)
• M20: 24,962,050 km (0.088 R)
• M21: 25,518,704 km (0.113 R)
• M22: 32,090,239 km (0.106 R)
• M23: 34,891,310 km (0.068 R)
• M24: 37,006,324 km (0.115 R)
• M25: 43,593,268 km (0.103 R)
• M26: 45,216,854 km (0.085 R)

Planet 9 - Ice Giant

Semi-Major Axis: 6.22 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 696.4

Radius: 4.3

Gravity: 37.66 G

Time & Orbit

Eccentricity (e): 0.192

Orbit Range: 5.03 AU - 7.41 AU

Year: 10176 Days

Day: 19.1 Hours

Environment

Temp: -215 °C

Axial Tilt: 38.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (36)

Outer Limit: 39,905,669 km

• M1: 62,083 km (0.033 R)
• M2: 211,382 km (0.099 R)
• M3: 414,685 km (0.112 R)
• M4: 630,854 km (0.103 R)
• M5: 842,236 km (0.073 R)
• M6: 1,111,363 km (0.049 R)
• M7: 1,303,895 km (0.064 R)
• M8: 1,664,576 km (0.082 R)
• M9: 2,053,680 km (0.079 R)
• M10: 2,663,440 km (0.062 R)
• M11: 3,688,036 km (0.115 R)
• M12: 4,090,604 km (0.036 R)
• M13: 5,507,894 km (0.09 R)
• M14: 5,714,190 km (0.048 R)
• M15: 7,142,251 km (0.107 R)
• M16: 7,512,356 km (0.055 R)
• M17: 7,680,803 km (0.076 R)
• M18: 9,955,888 km (0.079 R)
• M19: 13,993,534 km (0.087 R)
• M20: 18,309,882 km (0.065 R)
• M21: 21,435,580 km (0.084 R)
• M22: 23,525,911 km (0.077 R)
• M23: 24,712,970 km (0.089 R)
• M24: 25,086,217 km (0.12 R)
• M25: 25,368,508 km (0.118 R)
• M26: 25,652,893 km (0.089 R)
• M27: 26,324,887 km (0.113 R)
• M28: 27,008,400 km (0.09 R)
• M29: 27,205,869 km (0.091 R)
• M30: 28,309,303 km (0.082 R)
• M31: 29,233,967 km (0.042 R)
• M32: 30,072,613 km (0.118 R)
• M33: 33,702,007 km (0.057 R)
• M34: 35,208,457 km (0.104 R)
• M35: 39,486,208 km (0.092 R)
• M36: 43,283,002 km (0.11 R)

Planet 10 - Ice Giant

Semi-Major Axis: 7.13 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 253.4

Radius: 7.5

Gravity: 4.5 G

Time & Orbit

Eccentricity (e): 0.089

Orbit Range: 6.5 AU - 7.76 AU

Year: 12489 Days

Day: 15.6 Hours

Environment

Temp: -227 °C

Axial Tilt: 42.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 39,905,669 km

• M1: 93,648 km (0.059 R)
• M2: 402,269 km (0.117 R)
• M3: 784,940 km (0.093 R)
• M4: 1,044,343 km (0.081 R)
• M5: 1,935,348 km (0.058 R)
• M6: 2,603,302 km (0.115 R)
• M7: 3,893,135 km (0.079 R)
• M8: 4,200,409 km (0.084 R)
• M9: 6,681,041 km (0.099 R)
• M10: 8,228,332 km (0.066 R)
• M11: 10,826,099 km (0.115 R)
• M12: 11,332,338 km (0.044 R)
• M13: 13,516,168 km (0.082 R)
• M14: 14,222,419 km (0.104 R)
• M15: 15,077,371 km (0.112 R)
• M16: 17,023,789 km (0.08 R)
• M17: 18,339,801 km (0.106 R)
• M18: 24,199,550 km (0.077 R)
• M19: 25,327,967 km (0.103 R)
• M20: 26,582,046 km (0.063 R)
• M21: 28,349,395 km (0.1 R)
• M22: 38,723,259 km (0.07 R)

Kuiper Belt

Range: 30 - 58 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 435 - 11,904 AU

Composition

Type: Cometary Reservoir

System's final boundary, containing trillions of icy planetesimals.

Gravitational Limit